公开(公告)号：EP1616207B1

公开(公告)日：2018-02-28

申请号：EP04749622.9

申请日：2004-03-31

Applicant: Zolo Technologies, Inc.

Inventor： SAPPEY, Andrew, D. ,  HOWELL, James ,  HOFVANDER, Henrik ,  MASTERSON, B., P.

IPC: G01N21/35 ,  F23N5/00

CPC classification number: G01J3/36 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0237 ,  G01J3/024 ,  G01J3/0289 ,  G01J3/0297 ,  G01J3/108 ,  G01J3/1809 ,  G01J5/601 ,  G01J2003/104 ,  G01J2003/423 ,  G01N21/359 ,  G01N21/39 ,  G01N2021/399 ,  G02B6/14

Abstract: A sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.

公开(公告)号：EP2839265B1

公开(公告)日：2017-07-26

申请号：EP13779007.7

申请日：2013-03-15

Applicant: Zolo Technologies, Inc.

Inventor： HOWELL, Jim ,  MASTERSON, Bernard Patrick ,  HARRIS, Rod ,  GILTNER, David ,  JOBSON, Atilio ,  ESTES, Michael John ,  SAPPEY, Andrew D.

IPC: G01N21/39 ,  F23N5/00 ,  F24H9/00 ,  G01N21/84 ,  F23N5/08 ,  G02B5/122 ,  F23M11/04 ,  F23M20/00 ,  G01J3/02 ,  G01J3/42

CPC classification number: G01N21/39 ,  F23M11/045 ,  F23M20/00 ,  F23N5/082 ,  F23N2029/00 ,  F23N2900/05005 ,  G01J3/021 ,  G01J3/0289 ,  G01J3/42 ,  G01N21/84 ,  G01N2021/399 ,  G01N2201/0612 ,  G02B5/122

公开(公告)号：EP2464846A4

公开(公告)日：2015-01-21

申请号：EP10808655

申请日：2010-08-10

Applicant: ZOLO TECHNOLOGIES INC

Inventor： MASTERSON BERNARD PATRICK ,  HOWELL JAMES ,  HOFVANDER HENRIK ,  SAPPEY ANDREW D

IPC: F02C7/00 ,  F23N5/00 ,  G01N21/39

CPC classification number: F02C7/00 ,  F23N5/003 ,  F23N2025/16 ,  F23N2041/20 ,  G01N21/39 ,  G01N2021/4709 ,  G01N2201/084 ,  Y02T50/67

公开(公告)号：EP2376840A4

公开(公告)日：2013-12-25

申请号：EP10729501

申请日：2010-01-07

Applicant: ZOLO TECHNOLOGIES INC

Inventor： ESTES MICHAEL JOHN ,  SAPPEY ANDREW D ,  HOFVANDER HENRIK ,  MOLITORIS ALLEN ,  MASTERSON BERNARD PATRICK ,  HUANG PEI

IPC: F23N5/08 ,  F23M5/08 ,  F24H9/20 ,  G01N21/00 ,  G01N21/39 ,  G01N21/84

CPC classification number: G01N21/84 ,  F23M5/08 ,  F23N5/082 ,  G01B11/27 ,  G01N21/39

Abstract: A method of monitoring combustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between adjacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch optic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.

公开(公告)号：EP2569663A1

公开(公告)日：2013-03-20

申请号：EP11781158.8

申请日：2011-05-10

Applicant: Zolo Technologies, Inc.

Inventor： HOFVANDER, Henrik ,  MASTERSON, Bernard, P. ,  SAPPEY, Andrew, D. ,  HOWELL, James ,  OWENBY, David ,  SUTHERLAND, Lee ,  ESTES, Michael, J.

IPC: G02B6/00

CPC classification number: G01J5/0014 ,  G01J3/4338 ,  G01J5/601 ,  G01J2001/4242 ,  G01L23/16 ,  G01N21/39 ,  G01N2021/399

Abstract: A method of absorption spectroscopy to determine a rapidly variable gas parameter. The method includes transmitting light from a synchronization light source to a synchronization detector. The transmitted light is periodically interrupted by a moving mechanical part between the synchronization light source and synchronization detector. The output from the synchronization detector is used to generate a repeating time signal having variable phase delay. This signal is used to control the timing of laser spectroscopy wavelength scans. Multiple spectroscopic scans may be repeated at multiple selected time signal phase delay and the results averaged for each phase. Apparatus for implementing the above methods are also disclosed.

公开(公告)号：EP2434410A2

公开(公告)日：2012-03-28

申请号：EP11195700.7

申请日：2006-11-15

Applicant: Zolo Technologies, Inc.

Inventor： Sappey, Andrew D. ,  Masterson, Bernard Patrick

IPC: G06F17/00 ,  G01J5/08 ,  G01J5/00 ,  G01J5/60

CPC classification number: G01J5/0014 ,  G01J3/1895 ,  G01J5/0018 ,  G01J5/08 ,  G01J5/0803 ,  G01J5/0821 ,  G01J5/0893 ,  G01J5/0896 ,  G01J5/60 ,  G01K11/3206 ,  G01N21/39 ,  G01P5/26

Abstract: An embedded flight sensor system having a laser and one or more flight sensors in optical communication with the laser plus a data processing device in optical communication with the flight sensors. The flight sensors may be laser based optical components such as a fiber Bragg grating in combination with an optical detector, a spectroscopy grating and detector or an optical detector associated with catch optics. The parameters sensed by the flight sensors may be used to determine any flight parameter. Representative flight parameters include but are not limited to an airframe or external surface temperature, airstream velocity , combustion zone temperature, engine inlet temperature, a gas concentration or a shock front position.

Abstract translation: 具有激光器和与激光光学通信的一个或多个飞行传感器的嵌入式飞行传感器系统以及与飞行传感器光学通信的数据处理设备。 飞行传感器可以是基于激光的光学部件，例如与光学检测器结合的光纤布拉格光栅，光谱光栅和检测器或与捕捉光学器件相关联的光学检测器。 飞行传感器检测的参数可用于确定任何飞行参数。 代表飞行参数包括但不限于机身或外表面温度，气流速度，燃烧区温度，发动机入口温度，气体浓度或冲击前沿位置。

公开(公告)号：EP3237944A1

公开(公告)日：2017-11-01

申请号：EP15873925.0

申请日：2015-11-18

Applicant: Zolo Technologies, Inc.

Inventor： SAPPEY, Andrew D. ,  MASTERSON, Bernard Patrick

IPC: G02B6/00

CPC classification number: G01N21/39 ,  B01D53/30 ,  F23N5/00 ,  G01N2021/399 ,  G01N2201/0833 ,  G02B6/04 ,  G02B6/3598 ,  G02B6/3624 ,  G02B6/3672 ,  G02B6/40 ,  G02B6/4292

Abstract: A system for widely spaced wavelength tunable diode laser absorption spectroscopy includes at least a first and second tunable diode laser generating laser light at a first and second wavelength, wherein laser light of the first and second wavelengths cannot co-propagate efficiently on the same single-mode fiber. A first fiber may be configured to carry light in the first wavelength, and a second fiber configured to carry light in the second wavelength. A fiber bundle may be formed from the distal ends of the first and second fibers stripped of their respective coatings, and arranged with their claddings adjacent to each other. One or more pitch heads are configured to project respective beams of laser light from the fiber bundle through a measurement zone. One or more catch heads located across the measurement zone receive the respective beams and direct the respective beams onto at least one sensor.

Abstract translation: 用于宽间隔波长可调谐二极管激光吸收光谱的系统包括至少第一和第二可调谐二极管激光器，其产生第一和第二波长的激光，其中第一和第二波长的激光不能有效地在同一个单一波长上共同传播， 模式光纤。 第一光纤可以被配置为承载第一波长的光，而第二光纤被配置成承载第二波长的光。 纤维束可以由剥离其各自涂层的第一和第二纤维的远端形成，并且它们的包层彼此相邻布置。 一个或多个俯仰头被配置为将来自光纤束的相应激光束投射通过测量区域。 位于测量区域上的一个或多个抓取头接收相应的射束并将相应的射束引导到至少一个传感器上。

公开(公告)号：EP3084306A1

公开(公告)日：2016-10-26

申请号：EP14872360.4

申请日：2014-12-22

Applicant: Zolo Technologies, Inc.

Inventor： MASTERSON, Bernard P. ,  ESTES, Michael John ,  SAPPEY, AndrewD.

IPC: F23N5/08

CPC classification number: F23N5/082 ,  F23M11/042 ,  F23N5/24 ,  F23N2031/00 ,  G01N21/15 ,  G01N21/39 ,  G01N21/716 ,  G01N2021/151 ,  G01N2021/152 ,  G01N2021/399 ,  G01N2021/8416 ,  G01N2201/066 ,  G01N2201/0826 ,  G01N2201/0833

Abstract: A method of monitoring blockage of a sight tube attached to a wall of a process chamber, the sight tube being operatively associated with a TDLAS optical head with a window between the sight tube and the TDLAS optical head. The method includes the steps of providing a photo sensor in the TDLAS optical head, the photo sensor being positioned to receive light emitted by a light emitting process within the process chamber. An emission signal produced by light emitted by the light emitting process within the process chamber being received by the photo sensor is monitored. A determination is made if the emission signal is degrading.

公开(公告)号：EP2464846A1

公开(公告)日：2012-06-20

申请号：EP10808655.4

申请日：2010-08-10

Applicant: Zolo Technologies, Inc.

Inventor： MASTERSON, Bernard Patrick ,  HOWELL, James ,  HOFVANDER, Henrik ,  SAPPEY, Andrew D.

IPC: F02C7/22

CPC classification number: F02C7/00 ,  F23N5/003 ,  F23N2025/16 ,  F23N2041/20 ,  G01N21/39 ,  G01N2021/4709 ,  G01N2201/084 ,  Y02T50/67

Abstract: An apparatus and methods for measuring combustion parameters in the measurement zone of a gas turbine engine. The measurement zone is defined as being between an outer casing and an engine component having a reflecting surface inside the outer casing. The apparatus comprises a laser generating a transmitting beam of light of a select wavelength and a multimode transmitting fiber optically coupled to the laser. A transmitting optic is optically coupled to the multimode optical fiber for transmitting the beam into the measurement zone. The reflecting surface is configured to provide a Lambertian reflection. A receiving optic is positioned to receive the Lambertian reflection. Means are provided in operative association with the multimode transmitting fiber for averaging modal noise induced signal level variation of light propagating within the multimode transmitting fiber.

公开(公告)号：EP2376887A1

公开(公告)日：2011-10-19

申请号：EP10772402.3

申请日：2010-01-05

Applicant: Zolo Technologies, Inc.

Inventor： SAPPEY, Andrew, D. ,  HOFVANDER, Henrik

IPC: G01M15/14 ,  G01N21/25

CPC classification number: G01N21/8507 ,  G01M15/14 ,  G01N2021/8514

Abstract: A method of measuring the combustion property in a measurement volume within a chamber defined in part by a chamber wall. The method includes providing a port in the chamber wall. Also provided is a fiber assembly comprising a single mode transmit core surrounded by a multimode receive core means. The fiber assembly is operatively coupled to the port to provide optical communication between the fiber assembly and measurement volume. A detection beam capable of detecting a select combustion property is transmitted from the single mode fiber and reflected off a reflection surface within the chamber, the reflection surface being configured to reflect and optically couple at least a portion of the detection beam to the multimode receive core means. The detection beam optically coupled to the multimode receive core means is then measured.